The Central Ohio Severe Weather Network (COSWN) supports the National Weather Service (NWS) and area public safety agencies when severe weather threatens or is present in central Ohio. Our goal is to provide ground truth information to the NWS to enable the distribution of accurate and timely warning information for the general public.
Our area of responsibility includes the following counties in central Ohio: Delaware, Fairfield, Franklin, Fayette, Hocking, Licking, Madison, Pickaway, Ross, Union.
Federal Communication Commission licensed Amateur Radio operators are trained by the NWS to recognize and report weather conditions that could threaten life and property. This voluntary effort in time, materials and radio systems provide an important public service to the central Ohio community.
Public safety personnel dispersed throughout the area bring another source of information to COSWN providing additional details about severe weather events.